Features Special measuring probe: The digital pH meter consists of a special measuring probe (glass electrode) connected to the body for measuring and displaying pH readings. High accuracy: pH meter tester has a grade of 0.01, high accuracy, basic measurement error is ±0.05pH, and the measurable range is PH 0.00~14.00pH Temperature compensation function: pH acidity meter has a temperature compensation function, and the compensation range is 0~60°C. The pH tester is equipped with a large LCD segment display with backlight, which is convenient for you to measure in places with unclear light. Working temperature: The working temperature of the digital automatic water pH meter is 0 ~ 35°C, and the working humidity is 0-80% R H (non-gel). The pH meter is not affected by external magnetic fields except the earth's magnetic field during the measurement process Equipped with a storage box: The digital pH meter tester is equipped with a storage box, which is convenient for you to store after use, and it is also convenient for you to carry, which is very suitable for your daily use Features: 100% brand new and high quality  A pH meter is an electronic device used for measuring the pH which is either the concentration of Hydrogen ions in an aqueous solution or the activity of the Hydrogen ions in an aqueous solution.  The pH will indicate if the solution is acidic or basic, but is not a measure of acidity or alkalinity.  pH meters work in liquids though special probes are sometimes used to measure the pH of semi-solid substances.  A pH meter consists of a special measuring probe (a glass electrode) connected to the body which measures and displays the pH reading.  Specification:  Instrument Level:  Grade 0.01   PH Measuring range:  PH 0.00~14.00pH   PH basic measurement error:  ± 0.05pH   Instrument Repeatability:  ±0.03pH   Solution temperature compensation range:  0 ~ 60°C    instrument repeatability  0.03pH mV measuring range:  -1400mV~+1400mV   temperature range:  -10 ~ 60 ; 0.1°C    Battery:  9V Battery (not included)   Display:  Large LCD segment type display with back light   Working temperature:  0 ~ 35°C    Working humidity:  0-80% R H ( Non Gel)   Weight  Approx.650g/22.9oz  LCD Display:  1. Battery indication 2.  HOLD function 3.  MIN Measurement 4.  MAX Measurement 5.  PH measured value 6.  READ fuction 7.  Temperature Measured vale  Product Size 17.2*6.2*3cm/6.8*2.4*1.2in Package list:  1 x Digital PH meter (Battery not included)  1 x Plastic case 1 x Ph composite electrode  Note:  The liquid on the probe acts as a protector and you don't have to remove it. Package List